Improvement in manufacture of enemas, syringes



3 Sheets-Sheet 1.

Manufacture ofABneruas, Syringes, 8vo., of India.- Rubber.

9. 7. 8 4,. r. a M w M `m. A e R t e m N .l G. J.

Tlflnafnlflrv il da :5y

NJEIHS. PHOTO-LITMOGRAPNER. wAsmNGYON. D c.

3 Sheets-Sheet'l 2.

J. G. INGRAM, Manufacture 'ofEnemas,Syringes,&e.,of1r1die Rubber.

Pateted Mar. 4; 1879.

NJETERS. PMOTQvLITHDGRArHER, WASHINGTON. D c.

3 Sheets-Sheet 3.

G. INGRAM,

J. Manufacture of En'emas, Syrnges,&c.,of1ndia Rubbr.` No. 212,939. Patented Mar. 4, 1879'.

N. PETERS, PHOO-lITMOGRAPHEn. WASHINGTON. Dv C4 UNITED STATES PATENT OFFICE.

JAMES G. INGRAM, OF LONDON, ENGLAND.

IMPROVEMENT IN MANUFACTURE OF ENEMAS, SYRINGES, circ., 0F INDIA-RUBBER.

Specification forming part of Letters Patent No. 212,939, dated March 4, 1879; application filed November 2l, 1878 g patented in England, April 12, 1878.

To all whom it may concern:

Be it known-that I, JAMES GEORGE 'IN- GRAM, of the London India -Rubber IVorks, Hackney Wick,A London, England, have invented new and useful Improvements in the Manufacture of Encinas, Syringes, and other similar articles of india-rubber, which improvements are fully set forth in the following specification.

The invention has for its object improvements in the manufacture of eneinas, syringes, and other similar articles of india-rubber, whereby the saine are rendered stronger, lighter, less liable to split and to injury of the tubes, and have the valves placed in more convenient positionv than heretofore for ladjustment and repair; and in order that my said invention may be clearly understood and readily carried into effect, I will proceed, aided by the accompanying drawings, fully to describe the same.

Figure lispartly an exterior view and partly a section of an enema, syrin ge, or other similar article constructed according to my invention.

a is the ball or barrel, b is the suction-tube, and c is the delivery-tube, all of which it is preferred to form in one continuous body of india-rubber Without the usual metallic or other connections. d is the suction-valve. e is the delivery-valve, and fis the nozzle. The valves d e, instead of being placed, as heretofore, at ornear the junctions between the ball or barrel and the suction and delivery-tubes 4 are, according to my invention, placed at or near the outer ends of such tubes, whereby such valves are more readily placed in position, and they are placed in a more convenient position than heretofore for adjustment and repair;` and this part of my invention is applicable to encinas, syringes, and other similar 'articles manufactured according to my invention, or in any other convenient manner.

rllhe improved encinas, syringes, and other similar articles above described `may be manufactured in any of the modes hereinafter described.

According` to one mode l first forni a ball or barrel about half the thickness desired for the finished article. This I do by cutting the same out of sheet-rubber and joining the various parts thereof together at the seams by solvent, in the usual manner, and I find it advisable to partially cure this ball or barrel in a mold to cause it to assume and retain the desired shape,

This partially-formed ball or barrel ax, I mount, as represented at Fig. 2, upon a rod, Wire, or tube, g, and use the entire -as a form or mold upon which I obtain a coating ofindiarubber to any desiredthickness, as represented at Fig. 3, by dipping the same any required number of times in india-rubber solution or compound.

lVhen the desired thickness is obtained I remove the rod, Wire, or tube, leaving' the rst-mentioned ball or barrel ax Within and rmly connected with the finished article, thereby forming an increased thickness at such part as represented at Fig. 3, and I coniplete the enema, syringe, or other similar article by applying thereto an inlet-valve, d, at or near to the outer end of the suction-tube b, and an outlet-valve, e, at or near to the outer end of the delivery-tube o, to which I also connect the nozzle f in the usual Way.

v The above method of manufacture I also apply to the manufacture of brittle eneinas, syringes, and other similar articles, asrepresented in section at Fig. 4, in which case I first form the bottle or reservoir about half the thickness desired for the iiished article by cutting the saine out of sheet india-rubber, and joining the parts thereof together at the seams .by solvent in the usual manner, and then partially curing the same in a mold, as before described, after which I dip the same any required number of times in india-rubber solution or compound until the desired thickness is obtained, and, if desired, the bottle or reservoir may be provided With a tube formed thereon by the process of dipping, as described with respect to the previous gures, and instead of forming the ball or barrel and the inlet and outlet tubes all in one piece by the process described with respect to Figs-1, 2, and, the ball or barrel may be formedseparately by such process, as represented at Fig. 5, and the inlet and outlet tubes may be connected thereto in the usual manner; or half the ball or barrel a and a tube, b or c, connected thereto may be formed, as represented .at Fie'. 46, by dipping a suitably-shaped mold in dissolved india-rubber or compound, and then, after removal of the two half-molds, ccmentin g the two parts together 5 and I, by preference, previously bevel the adjoining surfaces, so as to afford more extended surface for the joint, andI also cement around the exterior of such joint a strip or band of india-rubber, in order that such part may be suitably strength encd. I then place the entire in a mold, and cure the same in the mode well understood for curing other hollow articles of india-rubber, after which the valves and nozzles are applied, as before described.

Another mode of manufacturing such im# proved enemas, syringes, and other similar articles consists in cutting the parts to form the ball, barrel, or reservoir, and the tube or tubes out of sheet-rubber, and cementing the same together, after which I place the entire in a mold of suitable shape and cure it, as before described.

The lines at h h, Fig. 7 represent the lines of junction of such a mold; but some of these lines of junction may be differently arranged.

If desired, in this last-described method of manufacture, the ball, barrel, or reservoir may also be made of greater thickness than the tubes by cutting the same out of thicker sheet india-rubber than that used for the tubes, and previous to curing the article in a mold strips, or rings of india-rubber may also be cemented around the lilies of junction of the various.

parts to strengthen the same.

At Fig. 8 I have represented a section of an enema, syringe, or other similar article constructed according to my invention, of such a form as to facilitate packing. In this case I invert or turn inward the ends of the ball or barrel a, and connect the inlet and outlet tubes to the bottom of such inverted ends, so as to enable the tubes to be coiled around the ball or barrel for packing without injury to such tubes.

This form of enema, syringe, or other similar article may be produced by cutting the parts thereof out of sheet india-rubber, cev inenting them together, and then curing the article in a mold, as hereinbefore last described; or it may be manufactured in a similar manner to that described with respect to Figs. 1, 2, and 3, except that in mounting the partially-cured ball or barrel on the tube, rod, or Wire for completing the same, and forming the tubes thereon by dipping, I stretch out the inverted or turned-in ends, so as to facilitate the dipping process, and then before curing the complete article I remove the rod, tube, or wire in order to allow or cause the ends of the ball or barrel to return to their turned-in position, when the tube, rod, or Wire is replaced, and the article is tincles at or near to the outer ends of the suction and delivery tubes b c, in manner and for the purpose substantially as herein shown and described.

2. Manufacturing the aforesaid improved enemas, syringes, and other similar articles by first making a ball or barrel about half the thickness required for the finished article, by cutting' the parts thereof out of sheet india-rubber, cementing such parts together, and partially curing the same iu a mold, and then using the same in combination with a rod, wire, or tube as a mold, upon which I obtain a coating of any desired thickness by dipping the same any required number of times in dissolved india-rubber or compound, in manner and for the purpose substantially as herein shown and described.

3. Manufacturing enem-as, syringes, and other similar articles by forming haltI the ball, barrel, or reservoir, and a tube connected thereto by dipping a suitably-shaped mold in dissolved india-rubber or compound, and then after removal of the same from the molds cementin g the two parts together and curing the saine, in manner and for the purpose substantially as herein shown and described.

4. hIanufacturing bottle enemas, syringes, and other similar articles, and balls or barrels for Lthe same, by first making them about half the thickness required for the iinished articles, by cutting the parts thereof out of sheet indiarubber, cemen tin g such parts together, and partially curing the same in a mold, and then using the same as a mold, upon which I obtain a coating of any desired thickness by dipping the same any required number of times in dissolved india-rubber or compound thereof, in manner and for the purpose substantially as herein shown and described.

I 5. inverting or turning in the ends of balls, barrels, or reservoirs oi' encinas, syringes, and other similar articles, and connecting the tubes thereto at the bottom of such inverted or turnedin ends, in manner and for the purpose sub- /stantially as herein shown and described.

J. G. INGRAM.

NVitnesses C. M. WHITE, F. W. WoonINGroN, Both, of 23 ,Southampton Buildings, London, Eng.

laad. 

